发明授权
- 专利标题: Process cartridge, electrophotographic apparatus and image-forming method
- 专利标题(中): 处理盒,电子照相设备和图像形成方法
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申请号: US10151104申请日: 2002-05-21
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公开(公告)号: US06615015B2公开(公告)日: 2003-09-02
- 发明人: Akihiko Nakazawa , Hiroyuki Kobayashi , Atsushi Tanaka , Tsunenori Ashibe , Takashi Kusaba , Hidekazu Matsuda
- 申请人: Akihiko Nakazawa , Hiroyuki Kobayashi , Atsushi Tanaka , Tsunenori Ashibe , Takashi Kusaba , Hidekazu Matsuda
- 优先权: JP2001-155881 20010524
- 主分类号: G03G1500
- IPC分类号: G03G1500
摘要:
A process cartridge is disclosed integrally supporting an electrophotographic photosensitive member, an intermediate transfer belt, a primary-transfer member for transferring a toner image primarily from the electrophotographic photosensitive member to the intermediate transfer belt and a charge-providing member for providing the toner on the intermediate transfer belt with electric charges having a polarity reverse to the polarity the toner has at the time of the primary transfer and returning the toner on the intermediate transfer belt to the electrophotographic photosensitive member at the contact zone to clean the intermediate transfer belt. The intermediate transfer belt has a modulus of elasticity of from 500 MPa to 4,000 MPa at elongation from 0.5% to 0.6% in the peripheral direction, a breaking extension of from 5% to 850% in the peripheral direction and a surface roughness Ra of 1 &mgr;m or less.